173,340 research outputs found
Introduzione a: Harry Kessler. Viaggi in Italia. Appunti dai Diari, a c. di L. Renzi e G. Rovagnati, Milano, Mimesis, 2013, p. 15-24
Over-reassurance and undersupport after a 'false alarm': a systematic review of the impact on subsequent cancer symptom attribution and help seeking
This literature review examined research into the impact of a previous 'all-clear' or non-cancer diagnosis following symptomatic presentation ('false alarm') on symptom attribution and delays in help seeking for subsequent possible cancer symptoms
Hermann Bausinger, La società dei risultati. Sfacettature della cultura del quotidiano. A c. di L. Renzi, traduz. di L. Renzi e F. Santini, con un saggio di P. Clemente e presentazione di L. Renzi.
Alternativa ed elementi di socialismo nelle comunità locali
Introduzione (E. Bettinelli e E. Renzi) – Tendenze e prospettive dell’autogoverno e dell’autogestione a Pavia (E. Bettinelli) – Politica comunale alternativa (U. Dragone) – Aspetti problematici della partecipazione e dell’autogestione a livello comunale (F. C. Rampolla) – Autonomia tributaria e finanziaria dei comuni (F. Osculati) – Consigli tributari e decentramento urbano (G. Tremonti) – Enti locali, decentramento e strategia della sinistra (F. Borgoglio) – La partecipazione per un nuovo modello di sviluppo (E. Veltri) – Un ritorno socialista per gli enti locali: la politica del territorio (V. Spini) – Alternativa socialista: dagli enti locali al governo centrale (G. De Michelis-) – Contropotere locale e alternativa di sistema (A: Zanini) – Su alcune ipotesi alternative di amministrazione della giustizia (M. Taruffo) – Gli Enti locali nel settore scolastico (G. Luzzato) – Democrazia di base e democrazia rappresentativa per la costruzione della società socialista (L. Labor) – Autogestione e movimento operaio (J. P. Chevènement) – Le giunte dopo il 15 giugno (G. Martinetti) – Nota bibliografica (E. Bettinelli e E. Renzi) – Documento fondativo dell’A.R.A. (Associazione per la Ricerca dell’Alternativa)
Hermann Bausinger, La società dei risultati. Sfacettature della cultura del quotidiano. A c. di L. Renzi, traduz. di L. Renzi e F. Santini, con un saggio di P. Clemente e presentazione di L. Renzi. Collana Percorsi di antropologia e cultura popolare, diretta da P. Clemente (=24). Pacini editore, Pisa, 2022
Seasonal Fluctuations of Trace Elements from Different Habitats of Orbetello Lagoon (Thyrrenian Sea, Italy)
This study evaluated seasonal fluctuations of trace elements of major ecotoxicological concern in sediments and their uptakes by the aquatic vegetation indifferent undisturbed habitats from the Orbetello lagoon, correlating measured levels to abiotic and biotic drivers to scale the significant of their effect on observed seasonal variability of trace elements. Results show that under natural undisturbed conditions, observed seasonal fluctuations in different habitats are statistically correlated to temperature, salinity, and turbidity of water and total nutrients in sediments. These variables and the habitat type dominated by macroalgae (C. linum) play a significant role as drivers of variability for measured trace elements in sediments. This study represents a reference undisturbed condition of natural seasonal trends of trace elements in different habitat types before the occurrence of numerous impacting activities on sediments and could represent a useful baseline for further management evaluations after the occurrence of sediment disturbance actions planned for the near future
Substituent effects on the stereochemistry of gas-phase intracomplex nucleophilic substitutions
The mechanism and stereochemistry of the intracomplex solvolysis of proton-bound complexes [Y center dot center dot center dot H center dot center dot center dot M](+) between M = (CH3OH)-O-18 and Y = 1-arylethanol [(S)-1-(para-tolyl)ethanol (1(S)), (S)-1-(para-chlorophenyl)ethanol (2(S)), (S)-1-(meta-alpha,alpha,alpha-trifluoromethylphenyl)ethanol (3(S)), (S)-1-(Para-alpha,alpha,alpha-trifluoromethylphenyl)-ethanol (4(S)), (R)-1-(pentafluorophenyl)ethanol (5(R)), (R)-alpha-(trifluoromethyl)benzyl alcohol (6(R)), and (R)-1-phenylethanol (7(R))] have been investigated in the gas phase (CH3F; 720 Torr) in the 25-140 degrees C temperature range. Gas-phase solvolysis of [Y center dot center dot center dot H center dot center dot center dot M](+) (Y = 2(S), 3(S), 4(S), and 7(R)) leads to extensive racemization above a characteristic temperature t(#) (e.g. at t(#) > 60 degrees C for 7(R)), whereas below that temperature the reaction displays a preferential retention of configuration. Predominant retention of configuration is instead observed in the intracomplex solvolysis of [Y center dot center dot center dot H center dot center dot center dot M](+) (Y = 1(S), 4(S), 5(R), and 6(R)) with the temperature range investigated (25 <= T <= 120 degrees C). These results indicate that the intracomplex solvolysis proceeds through the intermediacy of the relevant benzylic cations (Bz(+)), which is electrostatically coordinated to a H2O and a (CH3OH)-O-18 molecule (a pure S(N)1 mechanism). The obtained gas-phase mechanism is discussed in the light of related solution data. It is concluded that the stereochemistry of unimolecular solvolytic reactions is determined by the lifetime and the dynamics of the species involved and, if occurring in solution, by the nature and the dynamics of the solvent cage as well
- …
